Packing.



No. 719,042.. PATENTED JAN. 27, 1903.

W. REINHOLD.

PAGKIN G. APPLICATION I'ILED MAR. I3, 1902. no MODEL.

Vl i'fnessesf V Inuenfor: 4031 Q dim. 7% a m w mu uonms PETERS co. PuoTo-umu, WASHINGTON n. c.

llniTnn STATES PATENT OFFICE.

XVILl-IELM RElNI-IOLD, OF BERLlN-REINICKENDORF, GERMANY.

PACKING.

SEECIFIGATION forming part of Letters Patent No. 719.042, dated January 27, 1903.

Application filed March 13, 1902. Serial No. 98,026. (No specimens.)

To all whom it 72mg concern:

Be it k nown that I, WILHELM REINHOLD, a subject of the German Emperor, residing at Oranienburger Chaussee, Berlin-Reinickendorf, Germany, have invented certain new and useful Improvements in Packings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Packings of fiber, metal wire, asbestos, and the like used between pipe-flanges and in stuffing-boxes are subjected to destruction by the presence of moisture. To overcome this disadvantage, the packing has been produced by spirally winding up an indie-rubber-coated fabric. Owing, however, to alongitudinal seam remaining, a packing of this kind can very easily become unwound again, and, further, when used in stuffing-boxes after that part of the india-rubber coating which is in contact with the rod has been rubbed off the moisture will gradually penetrate the whole of the packing material. The object of keeping away the moisture is therefore not attained, and in addition to this the packing is subjected to rapid wear, owing to the fact that the rapidly-reciprocating piston-rod or the like has the constant tendency to drag away the threads of fabric in contact therewith.

The object of my improvements is to entirely protect from moisture packing material inclosed in undamaged india-rubber covers by inclosing in india-rubber the separate threads or hanks of fabric or plaited or twisted concentric mantles of the packing, this inclosure of the separate threads or banks in indiarubber also preventing the tearing away of threads by the piston or the like, owing to the close adhesion of the threads to each other.

In the annexed drawings, Figure 1 is a crosssection of a spirally-wound packing of the known kind, and Figs. 2 to 5 are diagrammatic cross-sections of several forms of the improved packing.

In Fig. 1, (t represents a core of india-rubber, cork, or the like, which may be hollow and around which the fabric bis spirally wound. 0 represents the coating of indiarubber painted on the fabric 7), this coating also being spiral. It will be seen from Fig.

1 that when the packing has been worn down to about the line A B moisture can spirally penetrate the entire packing in the direction of the arrow (1 without being prevented from doing so by the restof the india-rubber coating a.

Fig. 2 illustrates one form of the improved packing, in which the separate threads or hanks of which the fabric of the packing is made are not spirally wound, as in Fig. 1, but annularly. The fabrics therefore form separate mantles or rings concentric with each other and are preferably rendered distinguishable from one another by different coloring of the india-rubber covers. In this packing, which is produced in a plaiting or twisting machine, the separate fiber, asbestos, metal wire, or other threads or hanks e are embedded in completely surrounding and therefore self-contained india-rubber covers f. It is obvious that when one of these packings has been worn down-for instance, to the line C Don1ythe threads or hanks lying against the worn surface are open to the entrance of moisture and the attack of the piston or other rod, all other threads being completely protected against the entrance of moisture, since they are inclosed in india-rubber covers, which have remained undamaged. Since the separate threads are also held firmly together by the adhesiveness of the indierubber layer between them, the piston-rod is unable to tear away threads or is only able to do so to a less degree than when the indierubber layer is absent. Therefore besides the considerably-increased protection against the destructive action of moisture a reduction of wear and tear is obtained.

The packing shown in Fig. 3 differs from that of Fig. 2 only in the arrangement of four inserted corner-pieces h parallel to the packing, which are held in position by one or more quadrangular and concentric layers of fabric 7t. Both the corner-pieces h and the threads of which the casings 7c are made are provided with india-rubber coatings.

Fig. 4 represents a packing made in a plaiting or twisting machine the separate threads of which have no separate india-rubber coating. In this case each separate mantle Z made by plaiting or twisting is first given an indiarubber coating m, and then the next mantle is plaited on. The latter is then also surrounded by an india-rubber coating m, and so on until the packing has the desired thickness. When a packing of this kind is worn down, say, to the line E F, moisture can only enter the partially-worn-oif layers of fabric, the concentric layers lying farther in, the india-rubber coatings of which have remained entirely undamaged, are entirely protected against the entrance of moisture.

Fig. 5 represents a quadrangular packing in which corner-pieces h, with an india-rubber coating t, are placed parallel to the packings, which consists, as in Fig. 4, of separate fabrics and india rubber covers. These pieces h are held in position by one or more external mantles n, made by plaiting or twisting. The mantles 71 are preferably also provided with an india-rubber coating 0. When this form of packing is worn away, the effect is the same as that on the form shown in Fig. 4.

Toincrease the durability of packings made with theseimprovements,the threads or hanks may be greased before being worked up. Packings can also be made in which only part of the threads is india-rubber coated, the

other part' being only greased or provided with another coating.

Having now particularly described and ascertained the nature of mysaid invention and in What manner the same is to be performed, I declare that what I claim is 1. A packing for stuffing-boxes, composed of concentrically-arranged mantles of textile fiber, such mantles being seamless and the single threads of the mantles being totally surrounded by indie-rubber, and a flexible core forming the central inner part of the packing.

2. A packing-cord for stuffing-boxes, composed of concentrically-arranged mantles of textile fiber, such mantles being seamless, a seamless waterproof covering for each such mantle formed of a thin layer of india-rubber, and a flexible core forming the central inner part of the cord.

3. A packing-cord for stuffing-boxes, composed of concentrically-arranged mantles of 4. A packing'cord for stuffing-boxes, com-' posed of concentrically-arranged mantles of textile fiber, such mantles being seamless and the single threads of the mantles being totally surrounded by india-rubber, a flexible core forming the central inner part of the cord, a plurality of separate hanks located parallel to the packing-cord, and a series of twisted ed to secure the said longitudinal hanks in their position, such outer mantles being seamless and the single threads thereof being totally surrounded by india-rubbcr.

U. A packing-cord for stuffing-boxes, com posed of concentrically-arranged mantles of textile fiber, such mantles being seamless, a seamless waterproof covering for each such mantle formed of a thin layer of india-rubber, aflexible core forming the centralinner part of the cord, a plurality of separate hanks located parallel to the packing-cord and a series of twisted or plaited outer mantles adapted to secure the said longitudinal hanks in their position, each such outer mantle being seamless and provided with a waterproof seamless covering.

7. A packing for flanges and stuffing-boxes, consisting of a series of threads or hanks, forming mantles surrounding one another, and india-rubber, interposed between said threads or hanks, a series of separate hanks, located parallel to the packing, each of them being composed of a series of threads and india-rubber, one or more twisted or plaited outer mantles, cornered in cross-section and adapted to secure said longitudinal hanks in their position, each such outer mantle being composed of a series of threads and indiarubber. r

8. A packing for flanges and stuffing-boxes, consisting of a series of threads or hanks, forming circular mantles, surrounding each other, india-rubber, interposed in shape of annular layers between said mantles, aseries of separate hanks located parallel to the packing, each of them being composed of a series of thread and india-rubber, the latter forming a mantle, surrounding said series of threads, one or more twisted or plaited outer mantles, cornered in cross-section and adapted to secure said longitudinal hanks in their position, each such outer mantle being composed of a series of threads and india-rubber the latter forming a layer, surrounding said outer mantles.

In testimony whereof I afflx my signature in presence of two witnesses.

WILHELM REINHOLD.

Witnesses:

HENRY HASPER, WOLDEMAR HAUPT. 

